600Nitro, I'm loading a 180 Accubond in my '06 pushing it to 2800fps. I'm staying back off my lands between .005 &amp; .008 and so far my avgerage group for that is .350 for 5 shots out of a varmint contour barrel @100 yd. I'd say seat 'em out there and see what happens. Not the same caliber, just the same bullet. This is my hard target load, everything else is exterminated w/ a 175 VLD put right on the lands.